A325776 - cp's OEIS frontend

A325776 a(n) is the least nonnegative integer such that n concatenated with a(n) is a boomerang number (A308306), or -1 if n is a boomerang number.

n	a(n)
1	102
2	25
3	20
4	27
5	22
6	29
7	24
8	90
9	26
10	0
11	20
12	10
13	22
14	25
15	24
16	27
17	26
18	29
19	28
20	3
21	10
22	5
23	0
24	7
25	2
26	9
27	4
28	19
29	6
30	2
31	22
32	0
33	24
34	10
35	26
36	25
37	28
38	27
39	48
40	5
41	25
42	7
43	10
44	9
45	0
46	19
47	2
48	39
49	4
50	4
51	24
52	2
53	26
54	0
55	28
56	10
57	48
58	25
59	68
60	7
61	27
62	9
63	25
64	19
65	10
66	39
67	0
68	59
69	2
70	6
71	26
72	4
73	28
74	2
75	48
76	0
77	68
78	10
79	88
80	9
81	29
82	19
83	27
84	39
85	25
86	59
87	10
88	79
89	0
90	8
91	28
92	6

[102, 25, 20, 27, 22, 29, 24, 90, 26, 0, 20, 10, 22, 25, 24, 27, 26, 29, 28, 3, 10, 5, 0, 7, 2, 9, 4, 19, 6, 2, 22, 0, 24, 10, 26, 25, 28, 27, 48, 5, 25, 7, 10, 9, 0, 19, 2, 39, 4, 4, 24, 2, 26, 0, 28, 10, 48, 25, 68, 7, 27, 9, 25, 19, 10, 39, 0, 59, 2, 6, 26, 4, 28, 2, 48, 0, 68, 10, 88, 9, 29, 19, 27, 39, 25, 59, 10, 79, 0, 8, 28, 6]

cp's OEIS Frontend

A325776 a(n) is the least nonnegative integer such that n concatenated with a(n) is a boomerang number (A308306), or -1 if n is a boomerang number.

Table of values

List of values

n	a(n)
1	102
2	25
3	20
4	27
5	22
6	29
7	24
8	90
9	26
10	0
11	20
12	10
13	22
14	25
15	24
16	27
17	26
18	29
19	28
20	3
21	10
22	5
23	0
24	7
25	2
26	9
27	4
28	19
29	6
30	2
31	22
32	0
33	24
34	10
35	26
36	25
37	28
38	27
39	48
40	5
41	25
42	7
43	10
44	9
45	0
46	19
47	2
48	39
49	4
50	4
51	24
52	2
53	26
54	0
55	28
56	10
57	48
58	25
59	68
60	7
61	27
62	9
63	25
64	19
65	10
66	39
67	0
68	59
69	2
70	6
71	26
72	4
73	28
74	2
75	48
76	0
77	68
78	10
79	88
80	9
81	29
82	19
83	27
84	39
85	25
86	59
87	10
88	79
89	0
90	8
91	28
92	6

n	a(n)
1	102
2	25
3	20
4	27
5	22
6	29
7	24
8	90
9	26
10	0
11	20
12	10
13	22
14	25
15	24
16	27
17	26
18	29
19	28
20	3
21	10
22	5
23	0
24	7
25	2
26	9
27	4
28	19
29	6
30	2
31	22
32	0
33	24
34	10
35	26
36	25
37	28
38	27
39	48
40	5
41	25
42	7
43	10
44	9
45	0
46	19
47	2
48	39
49	4
50	4
51	24
52	2
53	26
54	0
55	28
56	10
57	48
58	25
59	68
60	7
61	27
62	9
63	25
64	19
65	10
66	39
67	0
68	59
69	2
70	6
71	26
72	4
73	28
74	2
75	48
76	0
77	68
78	10
79	88
80	9
81	29
82	19
83	27
84	39
85	25
86	59
87	10
88	79
89	0
90	8
91	28
92	6

n	a(n)
1	102
2	25
3	20
4	27
5	22
6	29
7	24
8	90
9	26
10	0
11	20
12	10
13	22
14	25
15	24
16	27
17	26
18	29
19	28
20	3
21	10
22	5
23	0
24	7
25	2
26	9
27	4
28	19
29	6
30	2
31	22
32	0
33	24
34	10
35	26
36	25
37	28
38	27
39	48
40	5
41	25
42	7
43	10
44	9
45	0
46	19
47	2
48	39
49	4
50	4
51	24
52	2
53	26
54	0
55	28
56	10
57	48
58	25
59	68
60	7
61	27
62	9
63	25
64	19
65	10
66	39
67	0
68	59
69	2
70	6
71	26
72	4
73	28
74	2
75	48
76	0
77	68
78	10
79	88
80	9
81	29
82	19
83	27
84	39
85	25
86	59
87	10
88	79
89	0
90	8
91	28
92	6